The KP87006 9-Stage Battery Charger, Maintainer & Power Supply is designed for lead-acid sealed batteries (Calcium, AGM, Gel & Wet) from 6Ah to 500Ah. The charger can also be used to maintain batteries up to 750Ah. The charger features a selectable charge rate of 2A, 15A and 25A meaning it can be used for a wide range of charging applications and battery sizes. The charger will also function as a power supply in the case of a battery failure, or when the battery is removed entirely.